Chainguide, help!

[ola_martin]

I'm ready to put on the chainguide and rollers om my HL replica/lookalike bike. I've used a RM250-80 swingarm. I'm going to use the stock RM nyonbuffer around the front pivot of the swingarm.

Now I need some good advice from you experienced twinshockguys. What should i do to keep the chain on?
My idea is to put a roller under the chain under the swingarmpivot, so that the chain is kept close to the swingarm.
Then one over the chain over the swingarmpivot, so that the chain rubs it when the rearshocks is fully compressed.
Then I've seen a roller mounted on the swingarm directly in front and above the rear sprocket, good idea? ( On the HL in Ray Ryans MorocrossRacers book )

Then there is the main guide under the swingarm in front of the rearsprocket, I don't have the original RM part, and it's gone from Suzuki, although it should be possible to get one elswhere I would like to use the nylon piece from a newer bike and make the alu. bit around it. Ideas on bits that might fit or other solutions here please!

Also, do i need a springed tension arm? Would like to skip that one if possible...

Thanks in advance!

[LWC82PE]

My idea is to put a roller under the chain under the swingarmpivot, so that the chain is kept close to the swingarm.
Then one over the chain over the swingarmpivot, so that the chain rubs it when the rearshocks is fully compressed

yes that sounds good and is how the good old PE's are done. I see you have a 79/80 Rm swing arm

yes you would want a guide infront/below the rear sprocket. thats how the RM/PE's had them. by 1980 the spring loaded idea fell out of favour on the suzukis.

if you had a PE swing arm i could give you the templates and all the details to cut out the chain guide plates to make the early 80s PE chain guide. Its different to RM.

1980 had 2 rollers in the guide
1981 had 1 roller and 1 nylon block
1982-84 had 2 nylon blocks.

see the PE one here.
http://ozvmx.com/community/index.php?topic=6771.15

we have designed the drawing so you can make it 2 ways. 1 easy way to make it thats a little different to original and one a bit more involved but exact like original.

if you want something modern/aftermarket, look at something off a WR400 yamaha maybe. There use to be aftermarket silver annodized ones for
yamahas available.

maybe something like this

http://www.pitpro.com.au/browse.php?action=view&productID=PP09-ACHAING+&categoryID=27

http://cgi.ebay.com/ebaymotors/2000-Yamaha-YZ250-YZ-250-chain-guide-aftermarket_W0QQcmdZViewItemQQ_trkparmsZ72Q3a570Q7c66Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a1Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem310130518051QQitemZ310130518051QQptZMotorsQ5fATVQ5fPartsQ5fAccessories

http://cgi.ebay.com/ebaymotors/1981-Maico-490-chain-guide-aftermarket-NEW_W0QQcmdZViewItemQQ_trkparmsZ72Q3a570Q7c66Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a0Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem280325315021QQitemZ280325315021QQptZMotorcyclesQ5fPartsQ5fAccessories

http://cgi.ebay.com/ebaymotors/HONDA-SUZUKI-YAMAHA-KTM-ATV-SWINGARM-REAR-CHAIN-GUIDE_W0QQcmdZViewItemQQ_trkparmsZ72Q3a570Q7c66Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318Q7c301Q3a0Q7c293Q3a1Q7c294Q3a50QQ_trksidZp3286Q2ec0Q2em14QQhashZitem140304411874QQitemZ140304411874QQptZMotorsQ5fATVQ5fPartsQ5fAccessories

just search ebay and im sure you will find something you will like

[GMC]

The spring tensioned chain guide is usually more important on bikes that have a large gap inbetween the countershaft sprocket & swingarm pivot.
As the gap closed over the years the spring tension mount was deemed unnecessary.

The rollers & plate near the rear sprocket on the original HL in Ray Ryans book I believe were to keep the chain away from the shock as the original HL's had minimal clearance between rear shock & chain.